Even the best players in America have weaknesses. ESPN recently released its preseason All-American team and while there's no doubt that it's a good representation of the nation's best players, it's also true that all of those guys have room to improve. That's what we set out to do, with the help of PFF College grades and data: Identify the "kryptonite" for the sport's biggest returning stars entering the 2016 season.
For some players, it was more difficult to isolate their weaknesses, as it's their all-around games that made them All-Americans in the first place.